System: Centos 6.5 (OS: Linux 2.6.32-431.29.2.el6.x86_64 x86_64 CentOS release 6.5 (Final) ), Postfix 2.6.6, Dovcot 2.0.9 Problem: smtpd error according to maillog. Server won’t allow remote authenticated relay mailing for users with accounts. POP3 is working. (Note: I am wondering if changing unix_listener auth-userdb to user uid/gid root instead of postfix, because I tried some fixes listed by user easyorange on this post (https://www.howtoforge.com/postfix-...private-auth-failed-no-such-file-or-directory), but when I restart dovcot it reverts back to root. UPDATE: I won't say I have solved the problem, but got smtpd to send mail for remote clients by commenting out the line "smtpd_sasl_type = dovecot" in the main.cf file, and restarting postfix. This lets postfix use Cyrus for SASL, which is the default. I am not sure if this means that dovecot imap4 will work or not, but I will test that later. 1. Maillog tail /var/log/maillog Jan 30 13:27:21 mzmmail postfix/smtpd[17116]: warning: 206.190.84.232: address not listed for hostname 206.190.84.232.cybertimebroadband.com Jan 30 13:27:21 mzmmail postfix/smtpd[17116]: connect from unknown[206.190.84.232] Jan 30 13:27:21 mzmmail postfix/smtpd[17116]: warning: SASL: Connect to smtpd failed: No such file or directory Jan 30 13:27:21 mzmmail postfix/smtpd[17116]: fatal: no SASL authentication mechanisms 2. postconf –n (mail.cf file) alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix debug_peer_level = 2 home_mailbox = Maildir/ html_directory = no inet_interfaces = all inet_protocols = all mail_owner = postfix mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, $domain mydomain = myzipmail.com myhostname = mzmmail.myzipmail.com mynetworks = 23.246.249.178, 23.246.249.179, 10.91.117.239, 10.54.102.169, 127.0.0.0/8 myorigin = $mydomain newaliases_path = /usr/bin/newaliases.postfix queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES sample_directory = /usr/share/doc/postfix-2.6.6/samples sendmail_path = /usr/sbin/sendmail.postfix setgid_group = postdrop smtp_sasl_path = private/auth smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot unknown_local_recipient_reject_code = 550 2. dovecot –n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-431.29.2.el6.x86_64 x86_64 CentOS release 6.5 (Final) auth_mechanisms = plain login disable_plaintext_auth = no mail_location = maildir:~/Maildir mbox_write_locks = fcntl passdb { driver = pam } service auth-worker { user = root } service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = postfix (Note: Should this be root?) mode = 0666 user = postfix (Note: Should this be root?) } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } service_count = 1 } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = passwd }
